利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

20 条记录 (耗时 0.024 秒)

    Production of rigid polyurethanes foams with reduced density
    1.
    发明授权
    Production of rigid polyurethanes foams with reduced density 失效
    生产刚性聚氨酯发泡体，密度降低

    公开(公告)号：US6040349A

    公开(公告)日：2000-03-21

    申请号：US38388

    申请日：1998-03-11

    申请人： Gottfried Knorr ,  Udo Rotermund ,  Eva Baum ,  Holger Seifert ,  Werner Wiegmann

    发明人： Gottfried Knorr ,  Udo Rotermund ,  Eva Baum ,  Holger Seifert ,  Werner Wiegmann

    IPC分类号： C08J9/08 ,  C08G18/48 ,  C08G18/50 ,  C08G18/66 ,  C08J9/14 ,  C08G18/32

    CPC分类号： C08J9/141 ,  C08G18/482 ,  C08G18/5033 ,  C08G2101/0025 ,  C08G2101/005 ,  C08J2375/12

    摘要： A process for producing rigid polyurethane foams with reduced density by reactinga) organic and/or modified organic polyisocyanates withb) at least one higher-molecular-weight compound having at least two reactive hydrogen atoms and, if desired,c) low-molecular-weight chain extenders and/or crosslinkers in the presence ofd) blowing agents,e) catalysts and, if desired,f) other auxiliaries and/or additives,is described, which comprises using, as blowing agent (d), a mixture of cyclopentane with at least one compound which is homogeneously miscible with cyclopentane selected from the class consisting of the alkanes and/or alkenes having 3 or 4 carbon atoms in the molecule and with the carbon dioxide produced from water and isocyanate, and using, as higher-molecular-weight compound (b) having at least two reactive hydrogen atoms, polyethers which contain aromatics and nitrogen.The use of the rigid foams produced in this way as insulating material is also described.

    摘要翻译： 通过使a）有机和/或改性的有机多异氰酸酯与b）至少一种具有至少两个反应性氢原子的高分子量化合物，如果需要，c）低分子量 在d）发泡剂和e）催化剂的存在下，重量增链剂和/或交联剂，e）催化剂，如果需要，f）其它助剂和/或添加剂，其包括使用作为发泡剂（d）的混合物 的环戊烷与至少一种与分子中具有3或4个碳原子的烷烃和/或烯烃与由水和异氰酸酯生成的二氧化碳类型的环戊烷可均匀混溶的化合物，并且使用较高的 - 具有至少两个反应性氢原子的分子量化合物（b），含有芳烃和氮的聚醚。 还描述了以这种方式制造的刚性泡沫作为绝缘材料的用途。

    Production of rigid polyurethane foams
    4.
    发明授权
    Production of rigid polyurethane foams 失效
    生产刚性聚氨酯泡沫

    公开(公告)号：US5895792A

    公开(公告)日：1999-04-20

    申请号：US935911

    申请日：1997-09-23

    申请人： Udo Rotermund ,  Renate Hempel ,  Holger Seifert ,  Werner Wiegmann

    发明人： Udo Rotermund ,  Renate Hempel ,  Holger Seifert ,  Werner Wiegmann

    IPC分类号： C08J9/12 ,  C08G18/06 ,  C08G18/48 ,  C08G18/50

    CPC分类号： C08G18/5033 ,  C08G18/482 ,  C08G2101/0025 ,  C08G2101/0033 ,  C08G2101/005 ,  C08G2101/0058 ,  C08G2101/0083

    摘要： In a process for producing rigid polyurethane foams having improved heat distortion resistance and reduced thermal conductivity by reactinga) polyisocyanates withb) compounds containing hydrogen atoms reactive toward isocyanates, in the presence ofc) water, and, if desired,d) physically acting blowing agents ande) catalysts and known auxiliaries and/or additives, the compounds b) containing hydrogen atoms reactive toward isocyanates are a polyol mixture comprisingb1) a polyol which can be prepared by addition of ethylene oxide and/or propylene oxide onto a hexitol or a hexitol mixture, with the total hexitol content of the polyol mixture being from 15 to 30% by weight, based on the polyol mixture, andb2) a polyol which can be prepared by addition of ethylene oxide and/or propylene oxide onto one or more aromatic amines, with the total amine content of the polyol mixture being from 1 to 10% by weight, based on the polyol mixture, and the amount of the polyol mixture in the component b) is from 60 to 100 parts by mass per 100 parts by mass of the component b).

    摘要翻译： 在制备具有改善的耐热变形性和降低热导率的硬质聚氨酯泡沫体的方法中，通过使a）多异氰酸酯与b）在c）水和（如果需要）d）的存在下，对含有氢原子的异氰酸酯反应的化合物d） 发泡剂和e）催化剂和已知的助剂和/或添加剂，包含对异氰酸酯具有反应性的氢原子的化合物b）是多元醇混合物，其包含b1）可以通过在己糖醇中加入环氧乙烷和/或环氧丙烷制备的多元醇 或己糖醇混合物，其中多元醇混合物的总己糖醇含量为基于多元醇混合物的15至30重量％，和b2）可通过将环氧乙烷和/或环氧丙烷加成到一个上制备的多元醇 或更多的芳族胺，多元醇混合物的总胺含量基于多元醇混合物为1至10重量％，并且组分中的多元醇混合物的量 b）相对于100质量份组分b）为60〜100质量份。

    Storage-stable emulsions for producing fine-celled rigid foams based on isocyanate
    5.
    发明授权
    Storage-stable emulsions for producing fine-celled rigid foams based on isocyanate 有权
    用于生产基于异氰酸酯的细胞刚性泡沫的储存稳定的乳液

    公开(公告)号：US5916480A

    公开(公告)日：1999-06-29

    申请号：US159976

    申请日：1998-09-24

    申请人： Udo Rotermund ,  Marion Heinz ,  Anja Biedermann ,  Renate Hempel ,  Werner Wiegmann

    发明人： Udo Rotermund ,  Marion Heinz ,  Anja Biedermann ,  Renate Hempel ,  Werner Wiegmann

    IPC分类号： C08J9/00 ,  B01F17/34 ,  C08G18/00 ,  C08G18/28 ,  C08G18/34 ,  C08G18/40 ,  C08G18/42 ,  C08G18/66 ,  C08G101/00 ,  C08J9/14 ,  C08K3/00

    CPC分类号： C08J9/141 ,  C08G18/6607 ,  C08G2101/0025 ,  C08G2101/0058 ,  C08J2205/10 ,  C08J2375/04

    摘要： Blowing agent-containing emulsions comprisea) compounds containing hydrogen atoms which are reactive toward isocyanates,b) blowing agents,c) catalysts, auxiliaries and/or additives which are customary in polyurethane chemistry, wherein the blowing agents b) are present as an emulsion in the components a) and c), and polyester alcohols having the following structure are used as emulsification aids: ##STR1## where m=0-15n=0-1o=0-15p=0-1q=0-15r=0-1s=0-15t=0-1u=0-10v=0-15x=1-5y=1-4 or mixtures of 1-3 where r+n.noteq.0z=0-3z.sub.i =0.1-3R.sub.1 is an aliphatic structure without OH groups, based on the structure of polyhydric alcohols, preferably ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol and dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, 1,3-butanediol, trimethylolpropane, trimethylol ethane, glycerol, pentaerythritol, where these substances can also be used as any mixture with one another in the esterification and R.sub.1 can therefore also be a mixture of the corresponding structures,R.sub.2 is the radical of a polycarboxylic acid without COOH groups, eg. adipic acid, terephthalic acid, o-phthalic acid,R.sub.3 is an alcohol radical like R.sub.1.

    摘要翻译： 含发泡剂的乳液包括a）含有对异氰酸酯具有反应性的氢原子的化合物，b）发泡剂，c）在聚氨酯化学中常用的催化剂，助剂和/或添加剂，其中发泡剂b）作为乳液存在 在组分a）和c）中，具有以下结构的聚酯醇用作乳化助剂：其中m = 0-15n = 0-1 o = 0-15 p = 0-1 q = 0-15 r = 0-1 s = 0-15 t = 0-1 u = 0-10 v = 0-15 x = 1-5 y = 1-4或1-3的混合，其中r + n NOTEQUAL 0 z = 0-3 zi = 0.1-3 R1是不含OH基团的脂肪族结构，基于多元醇的结构，优选乙二醇，二甘醇，三甘醇，1,2-丙二醇和二丙二醇，1,4-丁二醇， 6-己二醇，新戊二醇，1,3-丁二醇，三羟甲基丙烷，三羟甲基乙烷，甘油，季戊四醇，其中这些物质也可以作为彼此在酯化中的任何混合物使用，因此， 因此是相应结构的混合物，R2是不含COOH基团的多元羧酸的基团，例如。 己二酸，对苯二甲酸，邻苯二甲酸，R3是如R1的醇基。

    Open-celled rigid foams based on isocyanate
    7.
    发明授权
    Open-celled rigid foams based on isocyanate 有权
    基于异氰酸酯的开孔刚性泡沫

    公开(公告)号：US5880168A

    公开(公告)日：1999-03-09

    申请号：US159924

    申请日：1998-09-24

    申请人： Marion Heinz ,  Werner Wiegmann ,  Udo Rotermund ,  Anja Biedermann ,  Michael Reichelt

    发明人： Marion Heinz ,  Werner Wiegmann ,  Udo Rotermund ,  Anja Biedermann ,  Michael Reichelt

    IPC分类号： C08J9/02 ,  C08G18/28 ,  C08G18/48 ,  C08G18/66 ,  C08G101/00 ,  C08J9/14 ,  C08G18/34

    CPC分类号： C08J9/149 ,  C08G18/482 ,  C08G18/6607 ,  C08G18/6696 ,  C08J9/141 ,  C08G2101/0025 ,  C08G2101/0058 ,  C08G2330/50 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2205/05 ,  C08J2205/10 ,  C08J2375/04 ,  F25D2201/1262 ,  F25D2201/14

    摘要： In a process for producing open-celled rigid foams by reactinga) polyisocyanates withb) compounds containing hydrogen atoms which are reactive toward isocyanates, in the presence ofc) water,d) if desired, organic compounds acting as physical blowing agents,e) catalysts, auxiliaries and/or additives,the compounds containing reactive hydrogen atoms used are substances having the structure I: ##STR1## where m is 0-15n is 0-1o is 0-15p is 0-1q is 0-15r is 0-1s is 0-15t is 0-1u is 0-10v is 0-15x is 1-5y is 1-4 or mixtures of 1-3 where r+n.noteq.0z is 0-3z.sub.i is 0.1-3R.sub.1 is an aliphatic structure without OH groups based on the structure of polyhydric alcohols, preferably ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol and dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, 1,3-butanediol, trimethylolpropane, trimethylolethane, glycerol, pentaerythritol, where these substances can also be used in the esterification as any mixture among one another and R.sub.1 can therefore also be a mixture of the corresponding structures,R.sub.2 is the radical of a polycarboxylic acid without COOH groups, eg. adipic acid, terephthalic acid, o-phthalic acid,R.sub.3 is an alcohol radical like R.sub.1.

    摘要翻译： 在一种生产开孔刚性泡沫的方法中，通过使a）多异氰酸酯与b）在c）水存在下，含有对异氰酸酯反应的氢原子的化合物，d）如果需要，作为物理发泡剂的有机化合物，e ）催化剂，助剂和/或添加剂，含有反应性氢原子的化合物是具有结构I的物质：0-1 q是0-15 r是0-1 s是0-15 t是0-1 u是0 -10 v是0-15 x是1-5 y是1-4或1-3的混合物，其中r + n是等于0 z是0-3 zi是0.1-3 R1是没有OH基团的脂肪族结构，基于 多元醇的结构，优选乙二醇，二甘醇，三甘醇，1,2-丙二醇和二丙二醇，1,4-丁二醇，1,6-己二醇，新戊二醇，1,3-丁二醇，三羟甲基丙烷，三羟甲基乙烷， 甘油，季戊四醇，其中这些物质也可以在酯化中用作彼此和R1之间的任何混合物，因此可以是 o是相应结构的混合物，R2是不含COOH基团的多元羧酸的基团，例如。 己二酸，对苯二甲酸，邻苯二甲酸，R3是如R1的醇基。

    Prepolymers containing isocyanate groups and a method for the production thereof
    8.
    发明授权
    Prepolymers containing isocyanate groups and a method for the production thereof 有权
    含有异氰酸酯基团的预聚物及其制备方法

    公开(公告)号：US06495652B1

    公开(公告)日：2002-12-17

    申请号：US09673046

    申请日：2000-10-09

    申请人： Michael Reichelt ,  Udo Rotermund ,  Renate Hempel ,  Peter Falke ,  Peter von Malotki ,  Holger Seifert

    发明人： Michael Reichelt ,  Udo Rotermund ,  Renate Hempel ,  Peter Falke ,  Peter von Malotki ,  Holger Seifert

    IPC分类号： C08G1876

    CPC分类号： C09K3/1021 ,  C08G18/10 ,  C08G18/5006 ,  C08G18/7664 ,  C08G2101/0008 ,  C08G2101/0025 ,  C08G2101/0083 ,  C08G18/6674

    摘要： Prepolymers which contain isocyanate groups, have an NCO content of at least 30.0% by weight and can be prepared by reacting an isocyanate mixture consisting predominantly of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates and having a proportion of two-ring isomers of not more than 74% by weight with at least 4-functional polyols or a mixture of polyols having a mean functionality of at least 4, where the polyols or polyol mixtures have a hydroxyl number of from 200 to 1650 mg KOH/g and a number average molecular weight of less than 1100 g/mol. The present invention also provides a process for preparing these prepolymers containing isocyanate groups, provides for their use for producing polyurethanes and provides a process for producing polyurethanes by reacting at least one novel prepolymer containing isocyanate groups, if desired in admixture with further organic and/or modified organic isocyanates (a), with compounds having at least two reactive hydrogen atoms (b) in the presence of, if desired, blowing agents (c), catalysts (d) and, if desired, further auxiliaries and/or additives (e).

    摘要翻译： 含有异氰酸酯基的预聚物的NCO含量至少为30.0重量％，可以通过使主要由二苯基甲烷二异氰酸酯和聚苯基聚亚甲基多异氰酸酯组成的异氰酸酯混合物与二苯基聚亚甲基多异氰酸酯的比例为不超过74％的双环异构体比例 重量与至少4-官能多元醇或平均官能度至少为4的多元醇的混合物，其中多元醇或多元醇混合物的羟值为200至1650mg KOH / g，数均分子量小于 1100g / mol。 本发明还提供了制备这些含有异氰酸酯基团的预聚物的方法，提供了它们用于生产聚氨酯的方法，并且提供了通过使至少一种含有异氰酸酯基团的新型预聚物（如果需要）与另外的有机和/或 如果需要，发泡剂（c），催化剂（d）和（如果需要的话）其它助剂和/或添加剂（e）的存在下，改性有机异氰酸酯（a），具有至少两个反应性氢原子的化合物（b） ）。

    Thermally stable rigid foams based on isocyanate and having low brittleness and low thermal conductivity
    9.
    发明授权
    Thermally stable rigid foams based on isocyanate and having low brittleness and low thermal conductivity 有权
    基于异氰酸酯的热稳定的刚性泡沫体，具有低脆性和低热导率

    公开(公告)号：US06284812B1

    公开(公告)日：2001-09-04

    申请号：US09159798

    申请日：1998-09-24

    申请人： Udo Rotermund ,  Renate Hempel ,  Holger Seifert ,  Werner Schmiade

    发明人： Udo Rotermund ,  Renate Hempel ,  Holger Seifert ,  Werner Schmiade

    IPC分类号： C08G1804

    CPC分类号： C08J9/14 ,  C08G18/6607 ,  C08G2101/0025 ,  C08G2101/0058 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2375/04

    摘要： Thermally stable rigid foams based on isocyanate can be produced by reacting a) polyisocyanates with b) compounds containing at least two hydrogen atoms which can react with isocyanate groups, c) water, in the presence of d) physically acting blowing agents, in the presence or absence of e) catalysts and auxiliaries and/or additives, wherein the component b) comprises bi) at least one polyether alcohol having a functionality of at least 1.5 and a hydroxyl number of from 10 to 100 mg KOH/g in an amount of from 0.2 to 80% by mass, based on b), and bii)at least one polyester alcohol in an amount of from 5 to 90% by mass, based on b), the water c) is present in an amount of at most 2% by mass, based on the sum of the components b) to e), and the component d) used comprises hydrocarbons and/or fluorine-containing hydrocarbons in an amount of from 5 to 30% by mass, based on the sum of the components b) to e).

    摘要翻译： 基于异氰酸酯的热稳定的硬质泡沫可以通过使多异氰酸酯与b）含有至少两个可与异氰酸酯基团反应的氢原子的化合物，c）在存在或不存在的情况下在d）物理作用的发泡剂存在下， ）催化剂和助剂和/或添加剂，其中组分b）包含至少一种官能度为至少1.5，羟基数为10至100mg KOH / g的聚醚醇，其量为0.2至80％ 基于b），andbii）基于b）的至少一种聚酯醇的量为5〜90质量％，水c）的含量为至多2质量％，基于 基于组分b）至e）的总和，并且使用的组分d）基于组分b）至e的总和，含有5至30质量％的烃和/或含氟烃 ）。

    Isocyanate adducts
    10.
    发明授权
    Isocyanate adducts 有权
    异氰酸酯加合物

    公开(公告)号：US07390867B2

    公开(公告)日：2008-06-24

    申请号：US10735426

    申请日：2003-12-12

    申请人： Marion Heinz ,  Udo Rotermund ,  Peter Huntemann ,  Udo Schilling

    发明人： Marion Heinz ,  Udo Rotermund ,  Peter Huntemann ,  Udo Schilling

    IPC分类号： C08G18/48 ,  C08J9/32

    CPC分类号： C08G18/0885 ,  C08G18/4816 ,  C08G18/6674 ,  C08G18/7671 ,  C08G2101/00 ,  C08K7/28

    摘要： The invention relates to isocyanate adducts which can be prepared by reacting at least one polyisocyanate with compounds having at least two hydrogen atoms which are reactive toward isocyanate groups and have a crystalline content of less than 10 J/g determined by differential scanning calorimetry in accordance with DIN 51 004 at 20 K/min from room temperature to 250° C. using a nitrogen flow of 3 l/h as carrier gas and an aromatics content reported as carbon atoms in aromatic rings of less than 31% by weight, based on the total weight of the isocyanate adducts.

    摘要翻译： 本发明涉及异氰酸酯加合物，其可以通过使至少一种多异氰酸酯与具有至少两个对异氰酸酯基反应的氢原子的化合物与通过差示扫描量热法测定的结晶含量小于10J / g的化合物反应来制备， DIN 51 004以20K /分钟从室温至250℃，使用3升/小时的氮气流作为载气，芳族环中报道的芳族化合物含量小于31重量％，基于 异氰酸酯加合物的总重量。